Fluid-distilling apparatus



No. 6|6,277. Patented Dec. 20, |898.

. J.A. TDDD & H. G. SMITH.

FLUID DISTILLING APPARATUS.

(Application med Jan. 2a, 189s.)

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Patented Dec. 20, |898. e. SMITH.

FLUID DISTILLING APPARTUS.

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NITED STATES PATENT OFFICEo JARED A. TODD AND HARRY Gr. SMITH, OF TITUSVILLE, PENNSYLVANIA;

SPECIFICATION formingpart of Letters Patent No. 616,277, dated December 20, 1898.

Application iiled January 28, 1898. Serial No. 66 8,339. (N0 mOdeL) To all whom, zit 77mg/ concern:

Be it known that we, JARED A. TODD and HARRY G. SMITH,citizen's of the United States, residing at Titusville, in the county of Crawford and State of Pennsylvania, have invented certain new and useful Improvements in Fluid-Distilling Apparatus; and we do declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to whichit appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Our invention relates to fluid-distilling apparatus; and its object is toimprove and simplify devices belonging to that class of stills wherein a body of the liquid to be distilled is made to act as the condensing fluid by means of which the vapor arising from a heater or generator is deprived of its heat and returned to a iiuid condition.

Our invention consists of a heater or generator having a removable bottom and means for effecting a water-tight annular junction between the bottom and walls of the heater; a fluid reservoir or receptacle supported above, but protected from th'e heat from the generator, said reservoir having an inner and an outer wall or skin, leaving a cylindrical vapor-space between them, which is provided at the bottom with a suitable outlet and is divided by a helically-disposed Wire into a spiral condensing-chamber acted upon interiorly by the cold body of the fluid awaiting condensation and exteriorly by the atmosphere. Fromthe generator a pipe leads into the top of the condensing-spiral, and from the interior of the receptacle, near the top, a feed-pipe having a cut-off valve leads to and enters the heater. The iiuid is supplied cold to the receptacle or reservoir by an inlet-pipe having an expanding mouthpiece and extending nearly to the bottom of the receptacle.

Each constituent element is described in detail and its individual o'ice, together with the mode of operation of the whole, fully explained hereinbelow.

In the drawings, Figure l represents a side view of our invention, partly in section, out to exhibit internal parts. Fig. 2 is a side boundary to the Walls A of practically constant cylindrical diameter and smoothly-iinished exterior throughout. The top of the generator is denoted by a'.

Letter B designates the pan-shaped bottomv of the generator, constructed to'afford maximum heating surface and adapted to be placed over an ordinary stove-opening,alamp, or other convenient source of heat. It is our practice usually to iiange or flare the lower edge of bottom B, and j ust, above this edge is formed the encircling groove b, constructed to receive and detachably retain the wirebound edge of the heater-walls. It will be understood that the elasticity of walls and pan-shaped bottom permit this method of joining the parts and aids their intimate contact. It is believed to be within the purview of our invention to insert a grooved ring of packing, if found necessary,in anyinstance.

Letter C marksgthe wall of the reservoir,v

o its bottom, and c" its upper edge.

Letter D designates the outer skin, which rises above edge c and augments the reservoir-chamber. The topmost edge is a Wirebound rim CZ, as ordinarily fashioned, and the opening may or may not be closed by a lid.

Between reservoir-wall and skin D will be observed the cylindrical space E, closed at the top by a wire ring e, soldered in, o1" any effective expedient may be chosen to stop the open top of space E, which space is closed at the lower end by the extended bottom c of the reservoir. 4

F marks the outlet or spout from the space E, and G denotes the wire spiral .by which space E is divided to constitute the worm of the still. It is not essential that wire Gr be soldered or otherwise secured in place, as no material force acts to dislodge it.

H designates the Water-supply pipe, extending from its funnel-form mouth h, which is secured to skin D, downward nearly to the bottom of the reservoir. Cold fluid to be distilled is thus served to the bottom of the reservoir without disturbing the relatively warmer portion,which has taken heat from the vapor in space E and, becoming lighter, has risen to the top. It is this warmer fluid that it is desired to serve gravitationally by pipe J, stop-eockj, and feed-pipe K to the generator for vaporization.

Letter L designates a water-gage, of any selected form, att-ached to the generator to show the level of its iiuid contents.

Letter M marks suitable standards or blocks which support the reservoir above the generator, and the intervening space may contain a non-condnctin g mat to defend the reservoirbottom from the heater. By thus placing the reservoir and still upon the removable top a' of the generator we utilize the weight of those parts,with their contents, in resisting any upward pressure of vapor within the generator and to firmly press the rounded edge a against the lower curving portion of groove b.

From the generator a pipe N delivers the vapor near the top of spiral chamber or worm E, where it is cooled by contact with the reservoir-walls, the entire contents of the reservoir being available for condensing purposes, and finds its way by gravity, growing cooler as it descends, finally dripping from spout F in condition for use.

It will be understood that we save heat otherwise lost by serving the warmer portion of the contents of the reservoir from near the top of the generator, and any solid matter deposited within the generator can be readily removed from bottom B after it has been detached, as explained.

In manufacturing our invention we may prefer to form the spiral condensing-chamber by grooving the wall C of the reservoir eorrespondingly. We are aware that the helical wire and groove have each been used to form condensing-chambers for stills, and we do not claim either of those features.

Having thus described our invention, what we claim, and desire to protect by Letters Patent of the United States, is-

In a fluid-distilling apparatus, a still and reservoir in combination with a vapor-generator consisting of two separable portions, a top portion connected with and supporting said still and reservoir and having a rounded lower edge a, and an inverted-pan -shaped hollow bottom portion arranged to project upwardly within said top, said bottoni having a peripheral groove near its lower edge corresponding in form and size to said rounded edge ct of the top with which it forms a circular joint below the water-line of the generator, the weight of said still, reservoir and contents resting upon said joint, as set forth.

In testimony whereof we aiiix our signatures in presence of two witnesses.

.IARED A. TODD. IIARRY G. SMITH.

XVitnesses:

JAMES R. BARBER, SAML. THOMSON. 

